VF / Pulseless VT Practice Test

VF and Pulseless VT are shockable rhythms

Question 1/10
True
False

VF and Pulseless VT represent shockable rhythms. The left side of the Adult Cardiac Arrest Algorithm should be followed to treat.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 94

Next question

If the initial shock terminates VF but the arrhythmia recurs later in the resuscitation:

Question 2/10
Deliver subsequent shocks at the maximum energy dose
Deliver subsequent shocks at the previously successful energy level
Do not deliver any subsequent shocks and continue CPR
Begin cardioversion

If the initial shock terminates VF but the arrhythmia recurs later in the resuscitation attempt, deliver subsequent shocks at the previously successful energy level.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 96

Next question

For every minute that passes between collapse and defibrillation, how much does the chance of survival decrease from a witnessed VF sudden cardiac arrest if no bystander CPR is provided?

Question 3/10
7% to 10%
3% to 4%
25% to 30%
50% to 60%

For every minute that passes between collapse and defibrillation, the chance of survival from a witnessed VF sudden cardiac arrest declines by 7% to 10% per minute if no bystander CPR is provided. When bystanders perform CPR, the decline is more gradual and averages 3% to 4% per minute. CPR performed early can double or triple survival from sudden cardiac arrest at most defibrillation intervals.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 97

Next question

Pulse checks should:

Question 4/10
Performed every 50 cycles of CPR
Be performed during rhythm analysis, only if an organized rhythm is present
Take at least 15 seconds to ensure accuracy
Give the rescuer enough information to treat the victim

Perform a pulse check-preferably during rhythm analysis-only if an organized rhythm is present.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 99

Next question

What is the first-line antiarrhythmic agent given in cardiac arrest?

Question 5/10
Magnesium sulfate
Lidocaine
Epinephrine
Amiodarone

Amiodarone is the first-line antiarrhythmic agent given in cardiac arrest because it has been clinically demonstrated that it improves the rate of ROSC and hospital admission in adults with refractory VF/pulseless VT.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 100

Next question

Defibrillation restarts the heart

Question 6/10
True
False

Defibrillation does not restart the heart. Defibrillation stuns the heart and briefly terminates all electrical activity, including VF and pVT. If the heart is still viable, its normal pacemakers may eventually resume electrical activity that ultimately results in a perfusing rhythm.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 96

Next question

If using a biphasic defibrillator and the recommended dosage is not known:

Question 7/10
Do not shock until the recommended dose has been identified
Shock using the minimum energy dose available
Shock using a 360 J energy dose
Shock using the maximum energy dose available

If you do not know the effective dose range of a biphasic defibrillator, deliver the maximal energy dose for the first and all subsequent shocks.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 96

Next question

The proper dosing of epinephrine for VF/pVT is:

Question 8/10
1 mg IV/IO - repeated every 3 to 5 minutes
300 mg IV/IO bolus
1 to 2 g IV/IO diluted in 10 mL saline over 5 to 20 minutes
0.5 to 0.75 mg/kg IV/IO

Administer 1 mg IV/IO, repeated every 3 to 5 minutes.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 99

Next question

Epinephrine is used during resuscitation:

Question 9/10
Because it causes vasoconstriction
To stop allergic reactions causing heart failure
As a pain reliever for the victim
Because it is an antiarrhythmic

Epinephrine hydrochloride is used during resuscitation primarily for its beta-adrenergic effects, ie, vasoconstriction.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 99

Next question

The chest compression fraction should be:

Question 10/10
As high as possible
At least 50%
Lower than 25%
Lower than 60%

Chest compression fraction is the proportion of time during cardiac arrest resuscitation when chest compressions are performed. CCF should be as high as possible: at least 60% and ideally greater than 80%.

AHA Advanced Cardiovascular Life Support Provider Manual, p. 92

Next question

!